公开(公告)号：US20160094791A1

公开(公告)日：2016-03-31

申请号：US14805933

申请日：2015-07-22

Applicant: HANWHA TECHWIN CO., LTD

Inventor： Daebong KIM ,  Youngsang KWON ,  Joohye NOH

IPC: H04N5/232 ,  H04N5/225

CPC classification number: H04N5/23296 ,  G02B7/09 ,  G02B7/282 ,  G02B15/00 ,  G03B2205/0046

Abstract: An optimal zooming speed determining device includes: a storage to store a zooming speed at each position of a zoom lens; a tracking implementer to calculate a position of the zoom lens changed in a unit time at a zooming speed at each position of the zoom lens; a moving time calculator to calculate a difference between a position of a focus lens corresponding to a position of the zoom lens before the position of the zoom lens is changed and a position of the focus lens corresponding to the changed position of the zoom lens, and calculate a focus moving time by dividing the difference between positions of the focus lens by a highest moving speed of the focus lens; and a zooming speed determiner to reduce the zooming speed at each position of the zoom lens, if the focus moving time is greater than the unit time.

Abstract translation: 最佳变焦速度确定装置包括：存储器，用于在变焦镜头的每个位置处存储变焦速度; 用于计算变焦镜头的位置的跟踪实施器在变焦镜头的每个位置处以变焦速度在单位时间内变化; 移动时间计算器，用于计算在变焦镜头的位置之前对应于变焦镜头的位置的对焦镜头的位置之间的差异以及与变焦镜头的改变位置对应的对焦镜头的位置，以及 通过将聚焦透镜的位置之间的差除以聚焦透镜的最高移动速度来计算聚焦移动时间; 以及如果焦点移动时间大于单位时间，则缩放速度确定器用于减小变焦镜头的每个位置处的变焦速度。

公开(公告)号：US20230324651A1

公开(公告)日：2023-10-12

申请号：US18010718

申请日：2021-04-05

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Daebong KIM ,  Seonggon KIM ,  Junho GAL

IPC: G02B7/36 ,  G03B13/36 ,  H04N23/67

CPC classification number: G02B7/36 ,  G03B13/36 ,  H04N23/675

Abstract: An image capturing device includes a lens, a lens driver configured to change a focus position by moving the lens, an image sensor configured to detect light passed through the lens, and a focus controller configured to control, based on an image generated by the image sensor, the lens driver to adjust the focus position. The focus controller is further configured to: monitor a feature change of a saturated object having an intensity greater than or equal to a threshold value, in each of a plurality of regions of an image, by adjusting the focus position; and adjust the focus position based on a trend of the feature change of the saturated object while the focus position is changed in a direction.

公开(公告)号：US20220006960A1

公开(公告)日：2022-01-06

申请号：US17475801

申请日：2021-09-15

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Hyun Ho KIM ,  Jinhyuk CHOI ,  Daebong KIM ,  Jaewoon BYUN ,  Sangwook LEE ,  Junsik KIM ,  Kyoungjeon JEONG ,  Eunyoung KIM

IPC: H04N5/232 ,  G06K9/78 ,  H04N5/247 ,  H04N5/262 ,  H04N17/00 ,  H04N7/025 ,  H04N7/18 ,  G06N20/00

Abstract: Provided is an operating method for an artificial intelligence (AI) camera that communicate with at least one another AI camera, the operating method including: configuring a cluster for the image analysis together with other AI camera by exchanging registration information with the other AI camera; sharing, with the other AI camera, registration information about normal cameras used to access the normal cameras; receiving, based on one of the normal cameras being allocated to AI camera, an image captured by the allocated normal camera by accessing the allocated normal camera; analyzing the received image using an AI processor in the AI camera; and transmitting a result of the analyzing the received image together with an identifier of the allocated normal camera to an external device.

公开(公告)号：US20160014326A1

公开(公告)日：2016-01-14

申请号：US14548745

申请日：2014-11-20

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Kyungeun LEE ,  Youngseo PARK ,  Dongseuk PARK ,  Chunwon LEE ,  Youngsang KWON ,  Daebong KIM

IPC: H04N5/232 ,  G06K9/52 ,  G06K9/46 ,  G06T3/00

CPC classification number: H04N5/23212 ,  G06K9/46 ,  G06K9/52 ,  G06K9/522 ,  G06K2009/4666 ,  G06T3/0056

Abstract: An auto-focusing method includes dividing an image into a plurality of blocks, performing discrete cosine transform (DCT) on image data of the plurality of blocks to output a plurality of DCT blocks each comprising DCT coefficients, generating a DCT mask for selecting DCT coefficients corresponding to a selected frequency range in a DCT block among the plurality of DCT blocks, and calculating a focus value of the image by applying the generated DCT mask to the DCT block.

Abstract translation: 一种自动聚焦方法，包括将图像划分为多个块，对多个块的图像数据执行离散余弦变换（DCT）以输出多个DCT块，每个DCT块包括DCT系数，生成用于选择DCT系数的DCT掩码 对应于多个DCT块中的DCT块中的选定频率范围，并且通过将生成的DCT掩码应用于DCT块来计算图像的聚焦值。